Compiler Error in status flags

There seems to be a compiler error in ArrayKernel.hh Line 711

The clear function is never defined with an parameter. Not sure if this function gets called anywhere. I guess it was intended that the code swaps the erase element with the last one in the vector and then pop it at the back to achieve O(1) complexity while std::vector would move all elements. Just a quick guess.

We need a unittest to build this part. Seems to be a windows compiler triggerring the error.